J/ApJ/782/45ivo://CDS.VizieR/J/ApJ/782/45doi:10.26093/cds/vizier.17820045CDSDu P.Hu C.Lu K.-X.Wang F.Qiu J.Li Y.-R.Bai J.-M.Kaspi S.,Netzer H.Wang J.-M.(the Seambh collaboration)2026-05-12T20:04:58Z2016-03-11T14:46:55ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleiseyfert-galaxiesaccretionspectroscopyWe report first results from a large project to measure black hole (BH) mass in high accretion rate active galactic nuclei (AGNs). Such objects may be different from other AGNs in being powered by slim accretion disks and showing saturated accretion luminosities, but both are not yet fully understood. The results are part of a large reverberation mapping (RM) campaign using the 2.4m Shangri-La telescope at the Yunnan Observatory in China. The goals are to investigate the gas distribution near the BH and the properties of the central accretion disks, to measure BH mass and Eddington ratios, and to test the feasibility of using such objects as a new type of cosmological candles. The paper presents results for three objects, Mrk 335, Mrk 142, and IRAS F12397+3333, with H{beta} time lags relative to the 5100{AA} continuum of 10.6_-2.9_^+1.7^, 6.4_-2.2_^+0.8^ and 11.4_-1.9_^+2.9^ days, respectively. The corresponding BH masses are (8.3_-3.2_^+2.6^)x10^6^M_{sun}_, (3.4_-1.2_^+0.5^)x10^6^M_{sun}_, and (7.5_-4.1_^+4.3^x10^6^M_{sun}_, and the lower limits on the Eddington ratios are 0.6, 2.3, and 4.6 for the minimal radiative efficiency of 0.038. Mrk 142 and IRAS F12397+333 (extinction corrected) clearly deviate from the currently known relation between H{beta} lag and continuum luminosity. The three Eddington ratios are beyond the values expected in thin accretion disks and two of them are the largest measured so far among objects with RM-based BH masses. We briefly discuss implications for slim disks, BH growth, and cosmology.2014ApJ...782...45Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/782/45CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/806/22 : SEAMBHs IV. H{beta} time lags (Du+, 2015)J/ApJ/713/L11 : X-ray properties of Seyfert 1 galaxies (Zhou+, 2010)J/A+A/437/87 : Mrk 335 photometry in 1995-2004 (Doroshenko+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/782/45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/782/45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/782/45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/782/45https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/782/45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/782/45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/782/45/table1 (Basic data and variability amplitude)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/782/45/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/782/45/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/782/45/table1?GETtext/xml+votable180.050000true1.5812520.2027780.0055555555555555566/6028 10761 198833.8949892233750168e-19 3.8949892233750168e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/782/45?format=asciiOpticaldefaultJ/ApJ/782/45/table1Basic data and variability amplitudeLC1Light Curvesmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainz[0.025/0.05] Redshiftsrc.redshiftfloatE(B-V)[0.015/0.03] Galactic extinction (1)magphot.color.excessfloatYr0Starting monitoring period yearyrtime.epochintMth0Starting monitoring period monthtime.epochcharYr1Ending monitoring period yearyrtime.epochintMth1Ending monitoring period monthtime.epochcharNspec[51/119] Number of spectroscopic observing epochsmeta.numberintAmp1[5.2/8.1] Variability amplitude of the F_5100{AA}_ light curve (F_var_(5100{AA})) (2)%phot.mag;arith.ratiofloate_Amp1[0.5/0.6] Error in Amp1 (3)%stat.errorfloatAmp2[3.2/5.5] Variability amplitude of the V-band light curve (F_var_(V)) (2)%phot.mag;arith.ratiofloate_Amp2[0.3/0.4] Error in Amp2 (3)%stat.errorfloatAmp3[3/8] Variability amplitude of the F_H{beta}_ light curve (F_var_(H{beta})) (2)%phot.mag;arith.ratiofloate_Amp3[0.3/0.6] Error in Amp3 (3)%stat.errorfloatSep[80.7/189] Angular distance between the object and the comparison star (R*)arcsecpos.angDistancefloatPA[74/155.2] Position angle of the comparison stardegpos.posAngfloatLC2Light Curvesmeta.ref.urlcharsp1Mean spectrameta.ref.urlcharsp2RMS spectrameta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/782/45/table2Continuum and H{beta} light curvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject name (Mrk 335, Mrk 142, or IRAS F12397+3333)meta.id;meta.maincharJD[22.1/262.2]? Julian Date of observation (JD-2456200)dtime.epochdoublenullableFlux[1.2/6.9]? Continuum flux at (1+z)5100{AA} (G1)10aW.m**-2.nm**-1phot.fluxfloatnullablee_Flux[0.005/0.4]? Error in Flux (1)10aW.m**-2.nm**-1stat.error;phot.fluxfloatnullableFHb[0.6/6.5]? Integrated H{beta} flux (2)0.1fW.m**-2phot.flux;em.line.Hbeta;spect.linefloatnullablee_FHb[0.005/0.06]? Error in FHb (1)0.1fW.m**-2stat.errorfloatnullableJ/ApJ/782/45/figure5Mean and rms spectra (observed flux vs. rest-frame wavelength)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject name (Mrk 335, Mrk 142, or IRAS F12397+3333)meta.id;meta.maincharlambda[3760/7288] Rest frame wavelength {lambda} (in {AA})0.1nmem.wlfloat<Flux>Mean observed flux (G1)10aW.m**-2.nm**-1phot.fluxfloatrmsRMS flux (G1)10aW.m**-2.nm**-1phot.fluxfloat